Water-heating apparatus.



Patented Ian. 30, I900.

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NITED STATES PATENT OFFICE.

- AMENZO GRIFFITH, OF SPRINGFIELD, MASSACHUSETTSZ WATER-HEATING APPARATUS.

SPECIFICATION forming part Of Letters Patent NO. 642,443, dated January 30, 1900.

Application filed August 14, 1899. Serial No. 727,204. (No model.)

To all whom it may concern:

Be it known that I, AMENZO GRIFFITH, a citizen of the United States of America, and a resident of Springfield, in the county'of I-Iampden and State of Massachusetts, have invented certain new and useful Improvements in Water-Heating Apparatus, of which the following is a full, clear, and exact description.

This invention relates to improvements in water-heating apparatus, especially applicable in that class of attachments or appliances for stoves or ranges comprising hot-water fronts or receptacles for the heating of water from the fire in the stove.

The object of this invention is to produce a stove having any suitable or approved form of fire-box for ordinary fuel-coal or wooda water-receptacle to have the Water received therein and circulated therethrough heated by the fire in the fire-box, and which stove is capable of having the water-receptacle also heated by gas independently of or additional to the heating by the ordinary fuel.

The invention consists in a stove having a water-receptacle, a fire-box to one side of and next to the water-receptacle, and a gas-burner at another side of the receptacle.

The invention also consists in a stove having a fire-box and an independent chamber, a water-receptacle having an intermediate relation and arranged in common to said firebox and chamber and having a gas-burner with a gas-supplying conduit therewith connected, said burner being located in said chamber and arranged-to heat said receptacle; and the invention furthermore consists in other features of invention and novelty, all substantially as hereinafter described, and set forth in the claims.

In the accompanying drawings the invention is fully and clearly illustrated.

Figure 1 is a perspective view of my present improved range orstove with parts broken out and in section for clearer illustration. Fig. 2 is a detail view showing the relative arrangement of the operating parts.

In the drawings, A represents the fire-box of the stove or range, and B represents the water front or receptacle into which the water is received cold by the therewith-connected pipe a and out of which the heated water is conveyed by the pipe I), the means for inducing the circulation being the same as ordinarily employed in connection with the have the front wall 12 located within the margin of the top plate 10 for compactness and sightliness.

Located in the chamber C, adjacent and near the bottom of the water-receptacle B,

derstood as connected with the available gassupply.

The inlet gas-pipe f has therein the mixer g of a well-known form, whereby there is commingled with the entering gas an adequate quantity of atmospheric air.

1' represents the shut-off cock in the gas-inlet pipe.

jj represent a series of air-inlet flues entering into the gas-burner chamber 0 at or near the bottom thereof.

It will be perceived that the aforementioned space cl would connect the gas-burner chamber O with the space in the stove above the fire-box were it not for the provision of the partition 0%, which is apertured and provided with the apertured slide 11..

When the stove is being used with coal or wood as the fuel, the air draft or circulation through the flue j into and through the gasburner chamber 0 and through the fiues n of the damper-slide m n is prevented by the closing of the slide, so as not to damp or check the fuel fire in the fire-box; but when the water front or receptacle is to be heated by gas the said slide is opened, so that the gas-flame issuing at the j et-holes of the gas-burner will take an upwardly-directed course forimpingc- ICO ment against the f0rwardly-overhanging front of the water-receptacle and so that whatever slight waste products of combustion may remain will be carried off through the usual draft-passages of the stove by coming into the fire-box thereof and being taken care of the same as if they emanated from the latter, and thus whatever odors of gas which might arise from imperfect or incomplete combustion will not be disseminated in the room.

.I have illustrated combined means whereby when the gas is turned on to flow through the gas-burner D by opening the cock vi the damper-slide a will be automatically opened to establish the proper draft conditions for the burning of the gas, and when the gas is turned off the said slide will be automatically closed, it being presumed that when the water-front is not being heated by the operation of the gas-burner there is or will be a fuel fire in the firebox.

The stem 2' of the sh ut-off cock is, between its handle i and the cock, formed with a crank 2' with which is engaged the link or connecting-rod 0, which has a pivotal or swiveling connection at o with the end of the apertured sliding dampenplate n.

t represents provisions for a pilot; light,

whereby there will be constantly burning at the hole 15 leading through the wall of the burner-chamber, a small light for igniting the burner-supplying gas when issuing from the burner in the burner-chamber after having intermediate between and having the opposite sides thereof constitute walls of both the fire-box and the independent chamber, one or more fines or passages leading from the said chamber to communicate with the space in the fire-box, a gas-burner in said chamber, and means for supplying gas thereto, and means for closing said fiues or passages.

2. A stove or range having a fire-box and the independent chamber 0, the water-receptacle having an intermediate relation and arranged in common to said fire-box, and independent chamber, having the passage d above said receptacle, connecting said chamber with the space above the firebox, the gas-burner in said chamber adjacent the lower portion of the receptacle having a gas-supply pipe with a shut-0E cook, a device for opening and closing the aforesaid passage (1, and means operated by said cock for opening and closing said device automatically by and in conjunction with the opening and closing of said device, substantially as and for the purposes set forth.

3. A stove or range having a fire-box and the independent chamber 0, the water-receptacle having an intermediate relation and arranged in common to said fire-box and independent chamber, having the passage d above said receptacle, connecting said chamber with the space'above the fire-box, a gas-burner in said chamber adjacent the lower portion of the receptacle havinga gas-supply pipe with a cock or valve, the stem of which is provided with a cranked member, a damper-slide for opening and closing said passage, a rod connecting said crank member of the valve-stem of the damper, and a handle for turning the valve-stem, substantially as shown.

Signed by me at Springfield, Massachusetts, this 10th day of August, 1899.

AMENZO GRIFFITH.

Witnesses:

WM. S. BELLows, M. A. CAMPBELL. 

